The concept of a week has a fascinating history dating back over 4,000 years to ancient Mesopotamia. This seven-day cycle is believed to have been influenced by the four lunar phases: new moon, first quarter, full moon, and last quarter, each lasting approximately seven days. This structure was later adopted by the Babylonians and eventually spread to other cultures.
The names of the days are rooted in ancient astrology and mythology, with each day of the week named after a god or celestial body in different cultures, such as Latin and Germanic traditions. For instance, Monday is linked to the Moon, and Saturday to Saturn. This rich blend of astronomy, mythology, and history makes the week a truly interdisciplinary unit of time.
The concept of an hour as a unit of time has its roots in ancient Egypt, around 1500 BCE, when sundials were used to divide daylight into 12 equal parts. This uneven division, which varied with the seasons, was later standardized by the Greeks and Romans. The 24-hour division we use today first appeared in the late 13th century, influenced by the development of mechanical clocks in medieval Europe.
Interestingly, despite its seemingly mundane nature, the hour is deeply intertwined with human culture and religion. For example, in Christianity, the canonical hours mark specific times of prayer throughout the day, a practice dating back to the early Middle Ages. Even today, the hour impacts how society organizes work, entertainment, and rest, shaping our daily lives in profound ways.
Weeks | Hours |
---|---|
0
week
|
0
h
|
1
week
|
168
h
|
2
week
|
336
h
|
3
week
|
504
h
|
4
week
|
672
h
|
5
week
|
840
h
|
6
week
|
1008
h
|
7
week
|
1176
h
|
8
week
|
1344
h
|
9
week
|
1512
h
|
10
week
|
1680
h
|
11
week
|
1848
h
|
12
week
|
2016
h
|
13
week
|
2184
h
|
14
week
|
2352
h
|
15
week
|
2520
h
|
16
week
|
2688
h
|
17
week
|
2856
h
|
18
week
|
3024
h
|
19
week
|
3192
h
|
20
week
|
3360
h
|
21
week
|
3528
h
|
22
week
|
3696
h
|
23
week
|
3864
h
|
24
week
|
4032
h
|
25
week
|
4200
h
|
26
week
|
4368
h
|
27
week
|
4536
h
|
28
week
|
4704
h
|
29
week
|
4872
h
|
30
week
|
5040
h
|
31
week
|
5208
h
|
32
week
|
5376
h
|
33
week
|
5544
h
|
34
week
|
5712
h
|
35
week
|
5880
h
|
36
week
|
6048
h
|
37
week
|
6216
h
|
38
week
|
6384
h
|
39
week
|
6552
h
|
40
week
|
6720
h
|
41
week
|
6888
h
|
42
week
|
7056
h
|
43
week
|
7224
h
|
44
week
|
7392
h
|
45
week
|
7560
h
|
46
week
|
7728
h
|
47
week
|
7896
h
|
48
week
|
8064
h
|
49
week
|
8232
h
|
50
week
|
8400
h
|
51
week
|
8568
h
|
52
week
|
8736
h
|
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